Geographical and sexual variation in the long-tailed jaeger, Stercorarius longicaudus Vieillot

Geographical and sexual variation in the long-tailed jaeger, Stercorarius longicaudus Vieillot by T. H. Manning Download PDF EPUB FB2

Get this from a library. Geographical and sexual variation in the long-tailed jaeger, Stercorarius longicaudus Vieillot. [T H Manning] -- Statistical comparisons of the color of underparts, wing and bill measurements, and weights of sexed specimens of Nearctic and western and central palearctic long-tailed jaegers suggests two separate.

Etymology. The word "jaeger" is derived from the German word Jäger, meaning "hunter". The English word "skua" comes from the Faroese name skúgvur [ˈskɪkvʊər] for the great skua, with the island of Skúvoy known for its colony of that bird. The general Faroese term for skuas is kjógvi [ˈtʃɛkvə].

The genus name Stercorarius is Latin and means "of dung"; the food disgorged by Class: Aves. Long-tailed Jaeger cm (including central tail streamers of up to 22 cm); g; wingspan cm. Smallest, most buoyant and graceful skua; extremely long tail, unifo Long-tailed Jaeger (Stercorarius longicaudus) | HBW Alive.

Thomas (Tom) Henry Manning, OC (11 December – 8 November ) was a British-Canadian Arctic explorer, biologist, geographer, zoologist, and ted an Officer of the Order of Canada, Manning held the positions of vice-chairman and Executive Director of the Arctic Institute of North med the Lone Wolf of the Arctic, he was known for travelling Alma mater: Cambridge University.

The Long-tailed Jaeger (Stercorarius longicaudus) (known as the Long-tailed Skua outside the Americas) is a seabird in the skua family Stercorariidae.

Source: Wikipedia (0 votes) Photo powered by Order: Charadriiformes Family: Stercorariidae Genus: Stercorarius. Scientific: Stercorarius longicaudus.

Citation: Vieillot, General Description. The Long-tailed Jaeger is the smallest jaeger, with a slender body and narrow wings. During the breeding season, the adult has long central tail feathers that extend " beyond the rest of the tail, but from August to November, these are often broken or missing.

Click here for more information about the Red List categories and criteria Justification of Red List category This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (Extent of Occurrence.

Stercorarius longicaudus -- Vieillot, ANIMALIA -- CHORDATA -- AVES -- CHARADRIIFORMES -- STERCORARIIDAE Common names: Long-tailed Jaeger; Labbe à longue queue; Long-tailed Skua European Red List Assessment European Red List Status LC -- Least Concern, (IUCN version ) Assessment Information Year published: Date.

Wildscreen's Arkive project was launched in and grew to become the world's biggest encyclopaedia of life on Earth. With the help of over 7, of the world’s best wildlife filmmakers and photographers, conservationists and scientists, featured multi-media fact-files for more t endangered : Aves. Stercorarius longicaudus with the common name Long-tailed Skua, belongs to the Birds group it is geographically distrubuted among the following countries/areas: Finland, Denmark - Greenland, Norway, Russian Federation, Sweden, Norway - Svalbard and Jan MayenEU Population status: Secure.

In some monogamous species, as in the Long-tailed Skua (Stercorarius longicaudus), long tail ornaments have evolved in both sexes, which may signal Author: Malte Andersson. 21" (53 cm). Adult similar to light-phase Parasitic Jaeger but smaller, more graceful, and with very long central tail feathers (up to 6").

Upperparts paler than in other jaegers, and blackish cap smaller and more sharply defined. Flight more buoyant. Vol. 18, No. 2, Jun., Published by: Arctic Institute of North America. Geographical and Sexual Variation in the Long-Tailed Jaeger Stercorarius Longicaudus Vieillot by T.

Manning. Geographical and Sexual Variation in the Long-Tailed Jaeger Stercorarius Longicaudus Vieillot by T. Manning. A long-tailed jaeger, after being banded and fitted with a tracking device. (c83a3afddcfec5c).jpg 4, × 3,; MB Distribution and migration of North American gulls and their allies () ().jpg 2, × 2,; KB.

Stercorarius Brisson, – Jaegers: Species: Stercorarius longicaudus Vieillot, – Salteador cola larga, Long-tailed Jaeger, Labbe à longue queue: Direct Children: Subspecies: Stercorarius longicaudus longicaudus Vieillot, Subspecies: Stercorarius longicaudus pallescens Loppenthin, Biological classification: Species.

Stercorarius longicaudus longicaudus, Svalbard, Norway. Taxonavigation Stercorarius longicaudus Vieillot, References. Nouveau Dictionnaire d'Histoire Naturelle Appliquée Long-tailed Skua Esperanto: Longvosta rabmevo español: Págalo Rabero. Stercorarius longicaudus Common name Long-tailed jaeger Lifespan, ageing, and relevant traits Maximum longevity 14 years (wild) Source ref.

Sample size Medium Data quality Acceptable Observations No observations are presently available Life history traits (averages) Female sexual maturity Male sexual maturity Incubation 23 days Clutch size.

Coastal waters, San Mateo County, California August © Peter LaTourrette: LTJA Breeding adult. Arctic Jaeger cm; g; wingspan cm. Polymorphic. The genetic basis of the polymorphism is more complex than once believed and has been found to involve at leas.

Between andlong-tailed skuas Stercorarius longicaudus Vieill. in a study area in N. Sweden did not breed during years of low rodent abundance.

In good. An apparent dark-morph adult Long-tailed Skua in Shetland. Publish date: 18/07/ John Lowrie Irvine details the extremely rare occurrence of an apparent dark-morph Long-tailed Skua among a small flock of the species seen on Whalsay, Shetland, in early July.Long-tailed Skua Stercorarius longicaudus.

Name also: Long-tailed Jaeger; Family: Skuas – Stercorariidae; Appearance: Body similar in size to Black-headed Gull, though mature birds have very elongated central tail feathers. Juveniles have wedge-shaped tails.

Beak relatively thick. Pale patch on wings only indistinct.Long-tailed Skua (Stercorarius longicaudus) Adult plumage shows less variation than in other skuas. No hint of breast band, and transition between pale belly and darker vent very diffuse.

Juvenile Arctic Skua shows white patches at base of primaries on both sides of wings, juvenile Long-tailed only on underwing, and on first few.